When purchasing antiques use accredited dealers who belong to a trade association.
There are various choices and it depends a great deal on what’s in your collection and how much effort you can put in.
Often when you buy at auction you will be asked for specific information. This is under the Governments Money Laundering rules.
It is crucial that your documents are in order when you are exporting goods to a buyer or importing goods from a seller.
I often receive correspondence on the negative aspects of estate agents, all letters received having some ghastly story to tell.